| No. | Cultivar Name | Leaf Color | Variegation | Var Color | Origin | Flower Color | Season | Source | Registered |
|
1
| 'Ian's Crystal Ball' | Blue/Green | Marginal | Yellow | Hybrid | Pale-Lavender | June into July | Chrystal, Ian & Colley, June & Baker, John | .2020 |
|
2
| 'Ice King' | Dark-Green | Medial | White | Sport | Near-White | July | Kwick, Charles | .2019 |
|
3
| 'Icicle' | Dark-Green | Medial | White | Sport | Near-White | June into July | Fischer, Dr Ullrich | --NR-- |
|
4
| 'Ilona' | Blue/Green | Medial | White | Sport | Pale-Lavender | July into August | Heemskerk, Gerardus | .2011 |
|
5
| 'Indian Princess' | Blue/Green | | - | Hybrid | Near-White | June | Harshbarger, Gretchen & Ruh, Peter | .1998 |
|
6
| 'Innovation' | Dark-Green | | - | Hybrid | Pure-White | - | Nesmith, Elizabeth & Ruh, Peter | .1996 |
|
7
| 'Irische See' | Blue/Green | | - | Hybrid | Pale-Lavender | July | Klose, Heinz & Ruh, Peter | .1998 |
|